Home / 57,019.89-85,530.06-19,590.75

Finding the Fourth Proportional to 57,019.89, 85,530.06 and 19,590.75

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Solution

The fourth proportional to 57,019.89, 85,530.06 and 19,590.75 is: 29,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,019.89 : 85,530.06 = 19,590.75 : x
  2. Step 2: Convert to fraction form
    57,019.89/85,530.06 = 19,590.75/x
  3. Step 3: Cross multiply
    57,019.89x = 85,530.06 × 19,590.75
  4. Step 4: Simplify right side
    57,019.89x = 1,675,598,022.95
  5. Step 5: Solve for x
    x = 1,675,598,022.95/57,019.89
  6. Step 6: Final answer
    x = 29,386.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.